ELECTRIC PLATFORM SCALE
330 LB. WEIGHT CAPACITY
Model 98982
SET uP And OPERATInG InSTRuCTIOnS
Scale not legal for trade or postage.
®
distributed exclusively by Harbor Freight Tools .
3491 Mission Oaks Blvd., Camarillo, CA 93011
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MAnuAL.
©
®
Copyright 2008 by Harbor Freight Tools . All rights reserved. No portion of this manual or any artwork
contained herein may be reproduced in any shape or form without the express written consent of
Harbor Freight Tools. Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein. Tools required for
assembly and service may not be included.
For technical questions or replacement parts, please call 1-800-444-3353.
ranges and refrigerators. There is
an increased risk of electric shock if
your body is grounded.
ing to power source and/or bat-
tery pack, picking up or carrying
the tool. Carrying battery operated
equipment with your finger on the
Power Switch or energizing equip-
ment that have the Power Switch on
invites accidents.
c.do not expose the Scale to rain or
wet conditions. Water entering the
Scale will increase the risk of electric
shock.
d.do not overreach. Keep proper
footing and balance at all times.
This enables better control of the
Scale in unexpected situations.
d.do not abuse the Power Cord
(17). never use the Cord for car-
rying, pulling or unplugging the
Cord. Keep the Cord away from
heat, oil, sharp edges or moving
parts. Damaged or entangled Cords
increase the risk of electric shock.
4. Scale use and care
a.do not force the Scale. use the
correct Scale for your application.
The correct Scale will do the job bet-
ter and safer at the rate for which it
was designed.
e.When operating the Scale out-
doors, use an extension cord suit-
able for outdoor use. Use of a cord
suitable for outdoor use reduces the
risk of electric shock.
b.do not use the Scale if the Power
Switch (15) does not turn it on and
off. Any equipment that cannot be
controlled with the Power Switch is
dangerous and must be repaired.
f. If operating the Scale in a damp
location is unavoidable, use a
Ground Fault Circuit Interrupter
(GFCI) protected supply. Use of
a GFCI reduces the risk of electric
shock.
c.unplug the Power Cord (17) before
making any adjustments, changing
accessories, or storing the Scale.
Such preventive safety measures
reduce the risk of starting the equip-
ment accidentally.
3. Personal safety
a.Stay alert, watch what you are do-
ing and use common sense when
operating the Scale. do not use
the Scale while you are tired or un-
der the influence of drugs, alcohol
or medication. A moment of inatten-
tion while operating the Scale may
result in serious personal injury.
d.Store idle equipment out of the
reach of children and do not allow
persons unfamiliar with the Scale
or these instructions to oper-
ate the equipment. Line powered
and battery powered equipment are
dangerous in the hands of untrained
users.
b.use safety equipment. Always
wear eye protection. Safety equip-
ment such as ANSI-approved safety
impact goggles will reduce personal
injuries.
e.Maintain the Scale. Check for
misalignment or binding of mov-
ing parts, breakage of parts and
any other condition that may affect
the Scale’s operation. If damaged,
have the Scale repaired before
c.Prevent unintentional starting.
Ensure the Power Switch (15) is
in the off-position before connect-
SKU 98982
For technical questions, please call 1-800-444-3353.
Page 3
use. Many accidents are caused by
poorly maintained equipment.
3. Do not exceed the Scale’s maximum
weight capacity of 330 pounds.
f. use the Scale in accordance with
these instructions, taking into ac-
count the working conditions and
the work to be performed. Use of
the Scale for operations different from
those intended could result in a haz-
ardous situation.
4. Use in a dry location only. Risk of
electric shock.
5. Use on a level, solid surface capable
of supporting the weight of the Scale
and its load.
6. Do not lean load against display.
7. Level the Scale before use.
5. Battery tool use and care
a.Use this Scale only with specifi-
cally designated Batteries. Use of
any other Battery may create a risk of
injury and fire.
8. Wear ANSI-approved safety goggles
during assembly and Battery (18)
replacement.
b.under abusive conditions, liquid
may be ejected from the Battery
(16). Avoid contact. If contact ac-
cidentally occurs, flush with water.
If liquid contacts eyes, additionally
seek medical help. Liquid ejected
from the Battery may cause irritation
or burns.
9. This Scale is not legal for trade or
postage.
10. Read this manual before set up and
use of the Scale.
11. Do not sit or stand on the Scale.
12. Avoid unintentional starting. Prepare
to begin work before turning on the
Scale.
6. Service
a.Have your Scale serviced by a
qualified repair person using only
identical replacement parts. This
will ensure that the safety of the
equipment is maintained.
13. Do not leave the Scale unattended
when it’s Power Cord (17) is plugged
into an electrical outlet. Turn off the
equipment, and unplug the Power
Cord from its electrical outlet before
leaving.
Specific Safety Warnings
14. This product is not a toy. Keep it out
of reach of children.
1. Maintain labels and nameplates on
the Scale. These carry important
safety information. If unreadable or
missing, contact Harbor Freight Tools
for a replacement.
15. People with pacemakers should
consult their physician(s) before use.
Electromagnetic fields in close prox-
imity to heart pacemaker could cause
pacemaker interference or pacemak-
er failure. In addition, people with
pacemakers should:
2. This Scale contains a sealed lead
Battery (16). Do not dispose of an
old Battery in fire to avoid explosion
and possible personal injury. Recycle
old batteries according to local solid
waste authority procedures.
• Avoid operating alone.
• Do not use with power switch locked
SKU 98982
For technical questions, please call 1-800-444-3353.
Page 4
on.
GROundInG
• Properly maintain and inspect to
avoid electrical shock.
TO PREVEnT
ELECTRIC SHOCK
And dEATH FROM
InCORRECT GROundInG
WIRE COnnECTIOn:
• Any power cord must be properly
grounded. Ground Fault Circuit Inter-
rupter (GFCI) should also be imple-
mented – it prevents sustained elec-
trical shock.
Check with a qualified
electrician if you are in doubt
as to whether the outlet is
properly grounded. do not
modify the Power Cord Plug
provided with the Scale.
never remove the grounding
prong from the Plug. do not
use the if the Power Cord or
Plug is damaged. If damaged,
have it repaired by a service
facility before use. If the Plug
will not fit the outlet, have a
proper outlet installed by a
qualified electrician.
16. CONTAINS SEALED LEAD
BATTERY. BATTERY MUST BE
RECYCLED.
17. WARNING: Handling the cord on
this product will expose you to lead,
a chemical known to the State of
California to cause cancer, and birth
defects or other reproductive harm.
Wash hands after handling. (Califor-
nia Health & Safety Code § 25249.5,
et seq.)
18. WARNING: This product contains
lead, which is a chemical known to
the State of California to cause can-
cer and birth defects or other repro-
ductive harm. (California Health &
Safety Code § 25249.5, et seq.)
Grounded Tools: Tools with Three
Prong Plugs
19. The warnings, precautions, and in-
structions discussed in this instruction
manual cannot cover all possible con-
ditions and situations that may occur.
It must be understood by the operator
that common sense and caution are
factors which cannot be built into this
product, but must be supplied by the
operator.
1. Equipment marked with “Grounding
Required” have a three wire cord and
three prong grounding Plug. The
Plug must be connected to a properly
grounded outlet. If the equipment
should electrically malfunction or
SAVE THESE
InSTRuCTIOnS.
break down, grounding provides a
low resistance path to carry electricity
away from the user, reducing the risk
SKU 98982
For technical questions, please call 1-800-444-3353.
Page 5
of electric shock.
(See 3-Prong Plug and Outlet.)
4. If you are using one extension cord
for more than one tool, add the
nameplate amperes and use the sum
to determine the required minimum
cord size. (See Table A.)
2. The grounding prong in the Plug is
connected through the green wire
inside the Cord to the grounding
system in the equipment. The green
wire in the Cord must be the only
wire connected to the equipment’s
grounding system and must never be
attached to an electrically “live” termi-
nal.
5. If you are using an extension cord
outdoors, make sure it is marked with
the suffix “W-A” (“W” in Canada) to
indicate it is acceptable for outdoor
use.
6. Make sure the extension cord is prop-
erly wired and in good electrical con-
dition. Always replace a damaged
extension cord or have it repaired by
a qualified electrician before using it.
(See 3-Prong Plug and Outlet.)
3. The equipment must be plugged into
an appropriate outlet, properly in-
stalled and grounded in accordance
with all codes and ordinances. The
Plug and outlet should look like those
in the preceding illustration.
7. Protect the extension cords from
sharp objects, excessive heat, and
damp or wet areas.
(See 3-Prong Plug and Outlet.)
RECOMMEndEd MInIMuM WIRE
GAuGE FOR EXTEnSIOn CORdS*
Extension Cords
(110/220 VOLT)
1. Grounded equipment require a three
wire extension cord. Double Insu-
lated equipment can use either a two
or three wire extension cord.
EXTEnSIOn CORd
nAMEPLATE
LEnGTH
AMPERES
(at full load)
0 – 2.0
2.1 – 3.4
18
18
18
18
18
14
12
18
18
18
16
14
12
10
18
18
16
14
12
10
-
18
16
14
12
10
-
16
14
12
12
-
2. As the distance from the supply outlet
increases, you must use a heavier
gauge extension cord. Using exten-
sion cords with inadequately sized
wire causes a serious drop in voltage,
resulting in loss of power and pos-
sible tool damage.
3.5 – 5.0
5.1 – 7.0
7.1 – 12.0
12.1 – 16.0
16.1 – 20.0
-
-
-
* Based on limiting the line
voltage drop to five volts at
150% of the rated amperes.
The smaller the gauge number of the
wire, the greater the capacity of the
cord. For example, a 14 gauge cord
can carry a higher current than a 16
gauge cord. (See Table A.)
TABLE A
Symbology
Double Insulated
3. When using more than one exten-
sion cord to make up the total length,
make sure each cord contains at
least the minimum wire size required.
(See Table A.)
Canadian Standards Association
SKU 98982
For technical questions, please call 1-800-444-3353.
Page 6
subheadings therein before set
up or use of this product.
Symbology
Underwriters Laboratories, Inc.
TO PREVEnT
SERIOuS InjuRY
FROM ACCIdEnTAL
OPERATIOn:
Volts Alternating Current
Amperes
V~
A
Turn the Power Switch (15) to
its off position and unplug the
Power Cord (17) before
performing any inspection,
maintenance, or cleaning
procedures.
No Load Revolutions per Minute
(RPM)
n xxxx/min.
0
SPECIFICATIOnS
Input: 110 VAC~ / 60 Hz
Assembly Instructions
Electrical
Battery Type: 6 VDC Sealed Lead Acid
Requirements Power Switch: ON/Off Rocker Switch
Power Plug: 3-Prong, Grounded
dISPLAY
(1)
Maximum
Weight
330 Pounds (150 kilograms)
Capacity
Auto Turn Off When Under Voltage
Count
Limit Set
Auto Zero Track
Keyboard Calibration
Overload Alarm
FIGuRE A
STEEL TuBE
(4)
Main Functions
STEEL BASE
(5)
Control
Panel Button
Indicators
ADD, C, HOLD, FUNC, ZERO/TARE, UNIT
BOLTS
(6)
Four Adjustable Feet & Level Indicator for
Leveling of Scale.
Built-In Rechargeable Battery.
Additional
Features
unPACKInG
When unpacking, check to make sure
that the item is intact and undamaged. If
any parts are missing or broken, please
call Harbor Freight Tools at the number
shown on the cover of this manual as soon
as possible.
Attach the Display (1) and Steel Tube
(4) to the Steel Base (5) of the Scale
using four Bolts (6). (See Figure A.)
Scale Set up
1. Place the Scale on a clean, dry, flat,
level surface capable of supporting
the weight of the Scale and all ob-
jects to be weighed.
OPERATInG InSTRuCTIOnS
Read the EnTIRE IMPORTAnT
SAFETY InFORMATIOn section
at the beginning of this manual
including all text under
2. The work area must be free of vibra-
tion, strong air currents, direct sun-
shine, and high temperature.
SKU 98982
For technical questions, please call 1-800-444-3353.
Page 7
3. Designate a work area that is well-lit.
The area must not allow access by
children or pets to prevent injury and
distraction.
General Operating Instructions
FIGuRE d
PLATFORM
FIGuRE B
POWER SWITCH (15)
“I” = On
(13)
“O” = OFF
VIEW FROM REAR OF dISPLAY
AdjuSTABLE FEET
(11)
1. Plug the Power Cord/Plug (17) into
the nearest 110 volt, grounded,
FIGuRE C
electrical outlet. Then turn the Power
Switch to its “On” position.
IMPORTAnT: Make sure there is no
load on the Scale when turning the
Power Switch on. (See Figure d.)
LEVEL IndICATOR
(14)
2. For best accuracy, allow the Scale to
warm up for ten minutes before ap-
plying weight.
4. The four Adjustable Feet (11) and
Level Indicator (14) of the Scale are
used for leveling the unit. Use the
Adjustable Feet and Level Indicator
to level the Scale accordingly.
3. When turned on, the Scale will self-
check the rechargeable Battery (16)
and display “dc x.xxx”. If necessary,
the Scale will automatically enter the
Battery into a charging mode.
(See Figures B and C.)
5. Make sure the sides of the Scale’s
Platform (13) do not come in contact
with any object prior to setting an
object on the Platform to be weighed.
(See Figure B.)
• When using the Battery (16) to pow-
er the Scale, and the Battery volt-
age is lower than 5.4V, the Scale
will turn off automatically. In this
event, plug the Power Cord/Plug
into the nearest 110 volt, grounded,
electrical outlet and allow the Bat-
tery to charge for at least 8 hours
for full capacity.
6. Route the Power Cord (17) along a
safe route to reach the work area
without creating a tripping hazard or
exposing the Cord to possible dam-
age.
4. After the self-check, the Scale should
automatically set itself at the zero
position. However, the Scale did not
locate the zero position if either of the
following occurs:
SKU 98982
For technical questions, please call 1-800-444-3353.
Page 8
• Displaying “HHHHHH” and emitting
an alarm sound, meaning the zero
position is too high.
unit:
Press “UNIT” to choose the unit: Lb.
or Kg. (See Figure E.)
• Displaying “LLLLLL” and emitting
an alarm sound, meaning the zero
position is too low.
Hold:
1. Press “HOLD” at any time when
weighing. The displayed value will
be locked and will not change with
weight. Meanwhile, the “HOLD” indi-
cator will show. (See Figure E)
Should either of the above events
occur, make sure to check for proper
line voltage and Battery voltage.
Check that the Scale is level, it has
no load, and that its Platform (13) is
not touching any other object(s).
2. Press “HOLD” again to exit the hold
mode.
FIGuRE E
note: Under the hold mode, the Scale will
sound an alarm when overloaded al-
though the displayed value does not
change.
Memory Functions:
1. With a stable weight on the scale,
press “ADD“ to add the displayed
weight to the unit’s memory. (See
Figure E.) The M+ indicator will
show and the display will flash
{ADD=__} with the __ being the num-
ber of weights in memory and then
read the total accumulated weight
from memory.
Zero/Tare
1. Press the “ZERO/TARE” button the
1
scale is empty (< 4% F.S. ) and the
scale will read zero at the current
weight. The zero indicator will also
show. (See Figure E.)
note: The unit will beep twice if the
value is not added (for example if
the weight does not remain constant
enough.)
2. Press “ZERO/TARE” when the weight
is positive (> 4% F.S.) and the tare in-
dicator will show. The scale will then
read based on the tare weight.
2. Press “C” and the cumulative total will
be cleared.
Settings
3. Remove all weight and press the
“ZERO/TARE” button again to exit
tare mode.
1. To adjust the backlight brightness,
press “FUNC“ once and {BAC=0_}
will be displayed. The blank is the
brightness of the display backlight.
1
Full Scale. The full capacity of the scale. For
this item, 330 lb. (150 kg).
SKU 98982
For technical questions, please call 1-800-444-3353.
Page 9
2. Press “ZERO/TARE” to change the
brightness. The maximum is 5.
calibration weight, in kg. Leave the
platform empty.
3. Press “FUNC” after selecting the
brightness to switch to the manual
tare setting mode.
5. Press “UNIT“ to select the digit you
wish to alter. The selected digit flash-
es. Press “ZERO/TARE“ to change
the desired digit. Press “ADD” to fin-
ish entering the calibration weight.
4. The screen will briefly display PStAtE
and then display 0000.00 Enter the
tare weight in kg using the “UNIT”
button to select the digit and the
“ZERO/TARE” button to change the
digit. Once the tare is selected, press
the “ADD” button to return to normal
weighing mode.
6. Wait for the Indicator to display
“0.00”, this may require a minute or
two. Then, put the calibration weight
on the Platform.
7. If the value is the same as the cali-
bration weight, press “HOLD”. If not,
press “ZERO/TARE”, then “HOLD“ to
exit calibration mode, turn off scale
and retry calibration.
Calibration:
note: Calibration is a precise procedure.
If done improperly, it can cause the
scale to become inaccurate. If you
are not comfortable doing the calibra-
tion yourself, a qualified technician
should calibrate the scale.
Error Information:
1. “Ad_Err” = Can not receive the
weight signal from the Sensor (8).
1. Turn the scale off. Calibration must
be started when first turning on the
scale.
2. “------” = Zero position is too high or
the value is too high.
3. “___” = Zero position is too low or
2. Connect the scale to an 120 V~ re-
ceptacle and remove all weight from
the scale.
the value is too low.
4. “Lo_bat” = The battery voltage is too
low.
3. Turn on the Scale. Quickly press
“ZERO/TARE”, “UNIT”, then “ZERO/
TARE” after the scale displays
5. “---OL---” = Overload.
6. “SEtErr ----” = The data is not cor-
012345, but before the scale is ready
to weigh. The scale will enter calibra-
tion mode and display the original
maximum capacity value and the
division. These are factory settings
and should not be altered. Press
“Add” to continue.
rect.
4. The display will now read “-CAL-”
first, then “0150.00”. Now input the
SKU 98982
For technical questions, please call 1-800-444-3353.
Page 10
MAInTEnAnCE And
BATTERY
(16)
SERVICInG
Procedures not specifically
explained in this manual
must be performed only by a
qualified technician.
TO PREVEnT
SERIOuS InjuRY
FROM ACCIdEnTAL
FIGuRE F
OPERATIOn:
Turn the Power Switch (15) of
the Scale to its “OFF” position
and unplug the unit’s Power
Cord (17) from its electrical
outlet before performing any
inspection, maintenance, or
cleaning procedures.
• Unscrew and remove the six
Screws (18) located on the back
panel of the Display (1).
(See Figure F.)
• Remove the front portion of the Dis-
play (1) to expose the Battery (16).
(See Figure F.)
TO PREVEnT SERIOuS
InjuRY FROM EQuIPMEnT
FAILuRE:
do not use damaged
equipment. If abnormal noise
or vibration occurs, have the
problem corrected before
further use.
• Remove the old Battery (16) and
replace with a new Battery of the
same type. Then, re-attach the
front portion of the Display (1) to
the back portion of the Display and
secure using the six Screws (18).
(See Figure F.)
• IMPORTANT: The old Battery (16)
must be recycled according to local
solid waste authority instructions.
1. BEFORE EACH USE: Inspect
the general condition of the Scale.
Check for loose screws, misalignment
or binding of moving parts, cracked
or broken parts, Battery leakage, and
any other condition that may affect its
safe operation.
3. AFTER USE: Clean all external
surfaces of the Scale with soft, clean
cloth. Do not use solvents. Do not
immerse the Scale in liquid.
2. BATTERY REPLACEMENT: A Bat-
tery that fails to accept a charge is
an indication the Battery should be
replaced. To replace the Battery:
4.
WARnInG! If the Power Cord
(17) is damaged, it must be re-
placed only by a qualified service
technician.
SKU 98982
For technical questions, please call 1-800-444-3353.
Page 11
PARTS LIST & ASSEMBLY dIAGRAM
Part #
description
Display
Qty.
1
Part #
10
description
Lower Stand
Qty.
1
1
2
3
4
5
6
7
8
9
Nut
1
11
Adjustable Foot
Bolt
4
Bolt
1
12
4
Steel Tube
Steel Base
Bolt
1
13
Platform
1
1
14
Level Indicator
Power Switch
Battery
1
4
15
1
Upper Stand
Sensor
Bolt
1
16
1
1
17
Power Cord/Plug
Screw
1
8
18
6
14
Power Switch (15) not shown.
Battery (16) not shown.
Power Cord/Plug (17) not shown.
Screws (18) not shown.
SKU 98982
For technical questions, please call 1-800-444-3353.
Page 12
LIMITEd 90 dAY WARRAnTY
Harbor Freight Tools Co. makes every effort to assure that its products meet high
quality and durability standards, and warrants to the original purchaser that this prod-
uct is free from defects in materials and workmanship for the period of 90 days from
the date of purchase. This warranty does not apply to damage due directly or indirectly,
to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities,
criminal activity, improper installation, normal wear and tear, or to lack of maintenance.
We shall in no event be liable for death, injuries to persons or property, or for incidental,
contingent, special or consequential damages arising from the use of our product. Some
states do not allow the exclusion or limitation of incidental or consequential damages, so
the above limitation of exclusion may not apply to you. THIS WARRANTY IS ExPRESS-
LY IN LIEU OF ALL OTHER WARRANTIES, ExPRESS OR IMPLIED, INCLUDING THE
WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with
transportation charges prepaid. Proof of purchase date and an explanation of the com-
plaint must accompany the merchandise. If our inspection verifies the defect, we will ei-
ther repair or replace the product at our election or we may elect to refund the purchase
price if we cannot readily and quickly provide you with a replacement. We will return re-
paired products at our expense, but if we determine there is no defect, or that the defect
resulted from causes not within the scope of our warranty, then you must bear the cost
of returning the product.
This warranty gives you specific legal rights and you may also have other rights
which vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
Record Product’s Serial number Here:
note: If product has no serial number, record month and year of purchase instead.
note: Some parts are listed and shown for illustration purposes only, and are not avail-
able individually as replacement parts.
PLEASE REAd THE FOLLOWInG CAREFuLLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE
OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS QUALIFIED
TO REPLACE ANY PARTS OF THE PRODUCT. IN FACT, THE MANUFACTURER AND/OR DISTRIBUTOR
ExPRESSLY STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY
CERTIFIED AND LICENSED TECHNICIANS, AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK
AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT
PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS
THERETO.
SKU 98982
For technical questions, please call 1-800-444-3353.
Page 13
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